Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-38190

30
FAUCET Score

CVE-2021-38190 is a critical out-of-bounds memory access vulnerability affecting the nalgebra crate before version 0.27.1 for Rust, specifically due to a failure to validate the number of elements against the product of row and column counts. With a CVSS score of 9.8, this flaw allows for complete compromise of confidentiality, integrity, and availability with no user interaction or privileges required, making it highly severe. Despite its critical rating, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.27.1CPE matchmatch criteria
cpe:2.3:a:dimforge:nalgebra:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 57th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia msrc
Product: azl3 librsvg2 2.50.3-4 on Azure Linux 3.0Fixed in: 2.58.1-1
microsoftpatch availablevia msrc
Product: 19743-17084Fixed in: 2.58.1-1
microsoftpatch availablevia msrc
Product: 18817-17084Fixed in: 2.58.1-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 2.58.1-1
microsoftpatch availablevia msrc
Product: azl3 librsvg2 2.58.1-1 on Azure Linux 3.0Fixed in: 2.58.1-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 2.58.1-1
rustpatch availablevia ghsa
Product: nalgebraFixed in: 0.27.1

Vendor Advisories (3)

microsoft2024-Jun/CVE-2021-38190

CVE-2021-38190

Jun 11, 2024
rustGHSA-3w8g-xr3f-2mp8critical

Out of bounds write in nalgebra

Aug 25, 2021
microsoft2021-Aug/CVE-2021-38190Critical

An issue was discovered in the nalgebra crate before 0.27.1 for Rust. It allows out-of-bounds memory access because it does not ensure that the number of elements is equal to the product of the row count and column count.

Aug 10, 2021

References

raw.githubusercontent.com / rustsec/advisory-db/main/crates/nalgebra/RUSTSEC-2021-0070.md
Third Party Advisory
rustsec.org / advisories/RUSTSEC-2021-0070.html
ExploitIssue TrackingPatchThird Party Advisory